Binary galaxy spin correlations arising from mergers of galaxies

Details Binary galaxy spin correlations arising from mergers of galaxies Binary galaxy spin correlations arising from mergers of galaxies

Mar 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...355..532w&link_type=abstract

Astronomy and Astrophysics, v.355, p.532-536 (2000)

Astronomy and Astrophysics

Astrophysics

Galaxies: Clusters: General, Galaxies: Evolution, Galaxies: Interactions

Scientific paper

Statistics of spin orientations in binary galaxies may be used as a tool to study the formation process of galaxies. Helou found that the spins of spiral galaxies in binary systems are anticorrelated, and he suggested that it may have to do with the inclination dependence of the galaxy merger process. We study this dependence in small groups of galaxies. An N-body code is developed which uses an inclination dependent dynamical friction law to affect mergers of galaxies. It is found that some correlation results in this way in groups which have initially random spin orientations.

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